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Products & Services

Home Energy Saving & Audit
energy efficiency audit
energy saving devices
energy saving products
energy saving tips
home energy audit
home energy conservation

Home Insulation
attic insulation
blown in insulation
cellulose insulation
duct insulation
green insulation
insulation contractors
pipe insulation
reflective insulation

roof insulation
spray foam insulation
wall insulation
window insulation

Water Heaters
electric water heaters
gas water heaters

hybrid water heater
high-efficiency water heater
hot water heaters
indirect water heater
instant hot water heater
on-demand hot water heaters
tankless water heaters
water heater installation
water heater replacement

HVAC Systems
air conditioning contractors
air conditioning systems
boiler heating systems
central air conditioning
ductless air conditioning
gas furnace
heating and cooling systems
high efficiency furnace
home heating systems
hvac companies

Air Sealing
sealing air leaks
air duct leakage
air duct sealing
air leakage testing
door air seal
window air leakage

Radiant Barrier
radiant barrier insulation
radiant barrier cost
roof radiant barrier

ductwork repair
ductwork installation
ductwork cost
furnace ductwork
hvac ductwork

Renewable Energy 
Geothermal Heating and Cooling

Solar Energy
Solar panel installation
Solar heating
Solar Electric 

Emergency Plumbing
Plumbing Repair and Installation

Aspen Air Purifier

Dryer Vent Cleaning


Commercial Work

Before and After Pictures from Williamson
Steam Boiler Replacement in Genoa, NY

Steam Boiler Replacement in Genoa, NY

Before After
Steam Boiler Replacement in Genoa, NY Steam Boiler Replacement in Genoa, NY

This 1930's, cast-iron steam boiler had been running so inefficiently that these Genoa, NY homeowners were forced to use 4 additional space heaters just to maintain an adequate level of comfort throughout their 1900 sq. ft. house during the winter. We took out the boiler and the existing fuel oil tank and replaced it with this new Williamson high-efficiency, LP gas-fired steam boiler.  By combining this with several insulation and air-sealing measures that we performed throughout the home, they no longer have to worry about relying on multiple space heaters to be comfortable in the winter time.  But more importantly, they are expected to see a savings of around 30% on their energy bills!

New Furnace Installation in Auburn, NY

New Furnace Installation in Auburn, NY

Before After
New Furnace Installation in Auburn, NY New Furnace Installation in Auburn, NY

During the annual service for this maintenance agreement customer in Auburn, NY, technicians found a crack in the furnace heat exchanger.

One of Halco's energy advisors, Larry Williamson, went out the same night and provided the customer with options for a new furnace. Our homeowner accepted the offer and by 5/27 our service technicians, Eric O'Lena & Anthony Duncan had installed a new Goodman furnace in the home.

Flue Piping Replacement in Williamson, NY

Flue Piping Replacement in Williamson, NY

Before After
Flue Piping Replacement in Williamson, NY Flue Piping Replacement in Williamson, NY

We replaced a section of this Williamson, NY customer's corroded flue piping from the boiler and water heater to ensure dangerous gases are expelled from the living space.

Company Awards
2023 BBB Torch Award for Ethics
Halco has been awarded the prestigious 2023 Torch Award for Ethics by the Better Business Bureau (BBB). This award recognizes... [Read more]
NY-GEO Top Job Award
Halco won the GeoStar 'Top Job' award for the installation of a high-quality geothermal system at the historic Noble House... [Read more]
2014 Home Performance with ENERGY STAR® Century Club Award
New York State Energy Research and Development Authority (NYSERDA) and the Department of Energy (DOE) have awarded Halco with The... [Read more]
More Awards

Industry Leading Heating & Spray Foam Insulation Contractor in Williamson, NY

Steve A worked hard to get our heat back on. He deserves......
Happy Customers Surrounding Williamson, NY
Work Requests

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Reviews From Williamson
Testimonials From Williamson
Job was well done. cleaned up after work was completed. Very nice...
Testimonial by Carl A. from Williamson, NY
Your installers were very professional and informative as are all your employees that I have...
Testimonial by Dayne S. from Williamson, NY
Great service - Always impressed with the techs - efficient, thorough, polite,...
Testimonial by Gene & Joyce L. from Williamson, NY

Expert Heating System Installation & Repair Contractor

A properly working heating system is crucial to the efficiency and comfort of your home. At Halco our experts know exactly how important it is to have a heating system that won’t cost more money than necessary and will keep your home comfortable. If you have an older heating system that may not be running properly the short-term issue is that your home is not as comfortable as it could be. The long-term issue is that you are losing money. If you are struggling with a boiler or furnace that is old or not working properly, updating it will save you money on your energy bill.

Halco does not only do heating system installation, we are also industry leaders when it comes to heating system repairs in Williamson, NY. Our team of professionals understands exactly what it takes to keep your heating system running smoothly and your family warm. We have the expert crews and technicians to make long-lasting heating system repairs, including boilers and furnaces. Always remember to contact a professional if you notice any problem with your heating system. Postponing maintenance can make things worse and cause further issues down the road and create more heating system repairs.

Air Conditioning Repair, Installation & Service Company

Here at Halco, our skilled technicians can inspect your air conditioning system and provide the right services to prolong the life of your cooling system and keep your home comfortable. We provide repair and maintenance services for all brands and models of central and ductless air conditioners.

Home Insulation & Air Sealing Company

Many homeowners are under the impression that their home is properly insulated. However, when we take a look we find that the majority of homes do not have the proper amount of insulation. We find the wrong types of insulation used, insulation in the wrong locations, gaps in the insulation and in some cases no insulation at all. What does that all mean? It means you are spending far more money than necessary to keep your home comfortable. Stop wasting money, contact the professions at Halco today!

The idea of home insulation has been around for centuries. Cavemen lived in caves because of the natural protection it afforded them. Modern dwellings do not naturally keep the inhabitants warm and comfortable, insulation must be added to get the job done. Pink fiberglass insulation was used for decades but now Polyurethane spray foam is the best product available.

Benefits of Spray Foam Insulation Include:

  • spray foam works in all areas of the home
  • has a greater R-value
  • acts as an air sealant
  • is waterproof
  • leaves no gaps

By adding additional attic insulation, you will make your home more comfortable and save money on your energy bills.

We all know that heat rises and as a result attic insulation can have a major impact on the efficiency of your home. When you are heating your home in the colder months that heat will rise and escape through your attic. Depending on the size of your home the amount of heat that will escape could be equivalent to keeping a window open.

In a national study, the average R-value found in an average attic is R-19 while the U.S. Department of Energy recommends an R-value between R-49 and R-60. Halco has the trained professionals who will be able to give you certainty about the attic insulation in your home and its overall efficiency. Call or click today to Save up to 20% or more in heating and cooling costs with a properly insulated attic!

Fast & Reliable Plumbing Repair Services

Halco is a full-service plumbing company that can handle any of your plumbing repair and installation needs. Our skilled crews will be there for you around the clock because we offer 24/7 emergency plumbing repair services. Also, know that you are in good hands with Halco because each of our plumbing repair technicians is fully trained, licensed, and certified. Along with our expertise, we also offer top-quality products from leading manufacturers. We are fully stocked with the most energy-efficient equipment including water heaters, air conditioners, and heating systems.

Industry-Leading Home Energy Audits

There is no better way to tell if your home is truly affordable, comfortable, and sustainable than having the professionals at Halco perform a complete home energy audit. Halco uses industry-leading techniques and each of our trained technicians are fully licensed. Look no further for a company to perform a home energy audit. Our comprehensive process takes into account building construction, existing insulation, air filtration, and HVAC systems. We will then begin to calculate and estimate heat loss. To wrap up the home energy audit process we will recommend improvements where they are needed most, so your home will be as efficient and comfortable as possible.

Case Studies From Williamson
Halco has been servicing this client's steam boiler since 1998. In September of 2009 they decided they were ready for a replacement.
This home needed a new boiler!
Work Requests From Williamson, NY
Project Location: Williamson, NY
We are considering solar. We have a large bushy tree we are considering removing next to the driveway and putting solar panels in place.
Project Location: Williamson, NY
Project Location: Williamson, NY
Wondering the best route to take. Have an old fuel oil furnace wondering if it's worth saving or what would be the best replacement? And how much it will cost to see what would be best.
Project Location: Williamson, NY
Need an estimate to replace an aging natl gas, forced air furnace with a newer & more energy efficient unit. Home is small, approx 1000sq'
Project Location: Williamson, NY
I was given your information by a neighbor of my parents. We were interested in a no-cost energy audit. We have a small home in Williamson that is very old. Our RGE bills are always enormous. Our parent's neighbor mentioned there might be a program for low-income families to get assistance with energy repairs. Any information you can provide would be most helpful. Also would love to get an audit to help narrow down the problem areas. Email is the best way to reach me. Thanks so much!
Project Location: Williamson, NY
Looking for free estimate for solar panels
Project Location: Williamson, NY
I am interested in air conditioning for my home. We use electric baseboard heat so we don't have any duct work in the home. We had been using window units but need to discontinue those. I am interested in what options I might have available to me. Perhaps a unit in the attic? Please give me a call or email if you would like to set up a time to visit and let me know what is available. Thanks Gary DeWitt
Project Location: Williamson, NY
Have a 12 year old Lennox furnace that is a total money pit, has cost me about $1500 over the last 3 years, needs repairs every year, I think it's time to replace. You insulated my attic a couple years ago, you did a great job, very professional, so would like to talk to you about my current problem and options, replacement versus more repair. Thanks.

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